Function parseVtt

packages/cli/src/whisper/normalize.ts:217–246

(content: string)

}

function parseVtt(content: string): Word[] {
  // Strip the WEBVTT header and any metadata blocks
  const body = content.replace(/^WEBVTT[^\n]*\n/, "").replace(/^[A-Z-]+:.*\n/gm, "");
  // VTT is structurally similar to SRT (without numeric indices)
  const blocks = body.trim().split(/\n\n+/);
  const words: Word[] = [];

  for (const block of blocks) {
    const lines = block.trim().split("\n");
    const timeLine = lines.find((l) => l.includes("-->"));
    if (!timeLine) continue;

    const [startStr, endStr] = timeLine.split("-->").map((s) => s.trim());
    if (!startStr || !endStr) continue;

    const text = lines
      .slice(lines.indexOf(timeLine) + 1)
      .join(" ")
      .replace(/<[^>]+>/g, "") // strip HTML tags
      .trim();
    if (!text) continue;

    words.push({
      text,
      start: parseVttTimestamp(startStr),
      end: parseVttTimestamp(endStr),
    });
  }
  return words;
}

// ---------------------------------------------------------------------------
// Timestamp helpers